55242124 has 36 divisors (see below), whose sum is σ = 114218832. Its totient is φ = 22900320.

The previous prime is 55242107. The next prime is 55242127. The reversal of 55242124 is 42124255.

It is not an unprimeable number, because it can be changed into a prime (55242127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25882 + ... + 27934.

Almost surely, 2^55242124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55242124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57109416).

55242124 is an abundant number, since it is smaller than the sum of its proper divisors (58976708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55242124 is a wasteful number, since it uses less digits than its factorization.

55242124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2093 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 55242124 is about 7432.5045576844. The cubic root of 55242124 is about 380.8524813357.

Adding to 55242124 its reverse (42124255), we get a palindrome (97366379).

The spelling of 55242124 in words is "fifty-five million, two hundred forty-two thousand, one hundred twenty-four".